KR20210029630A - Urea water supply unit with urea cartridge unit - Google Patents

Abstract

The present invention relates to a urea water supply device in which a urea water cartridge unit is formed. More particularly, the present invention relates to a urea water supply device having a urea water cartridge unit, which has the effect of always supplying only high-quality purified urea water to automobiles. According to the present invention, the urea water supply device having a urea water cartridge unit comprises: a main body housing (100) which displays the supply status of urea water on the front, controls the supply of urea water inside, and receives urea water from a urea water storage tank (310) air-tightly coupled to a connector means (130) formed on the rear side; a guide housing (200) formed in a rectangular plate shape toward the bottom of a rear surface of the main body housing; and a urea water cartridge unit (300) which accommodates the urea water to supply the urea water to the main body housing (100) and is detachably attached to the main body housing and air-tightly coupled to be replaceable.

Description

Urea water supply unit with urea cartridge unit}

The present invention relates to a urea water supply device in which a urea water cartridge unit is formed, and more particularly, an element of urea salt generated due to the difficulty of cleaning the urea water storage tank, which is a problem of a conventional urea water storage tank-integrated urea water supply device. To solve the difficulty in supplying quality urea water due to contamination sources in the urea water storage tank due to adhesion to the wall of the water storage tank, precipitation of foreign substances, and generation of foreign substance scale, a cartridge-type urea water storage tank is constructed. It is easy to remove pollutants, and it is always possible to smoothly supply clean urea water without high-quality pollutants, thereby preventing breakdown or damage of expensive exhaust gas reduction devices installed in vehicles, thereby reducing vehicle maintenance costs. , The present invention relates to a urea water supply device having a urea water cartridge unit capable of continuously supplying urea water by preventing restriction of vehicle supply of urea water for cleaning the urea water storage tank.

Urea water (urea) is a liquid chemical substance with a concentration of 318 to 332% made by mixing urea and pure water, which are the raw materials of urea fertilizer, which we commonly know. This urea water is used to purify nitrogen oxides in diesel engine vehicles. Nitrogen oxide causes various respiratory diseases such as bronchitis and pneumonia, and is known to be the main cause of optical smog and acid rain. As a result of the study, there are reports that more than twice the number of deaths in traffic accidents are dying from automobile smoke, so the effect of vehicle exhaust on our daily lives is great. That is why vehicle exhaust regulations are becoming more and more stringent as a part of greenhouse gas reduction, which has been steadily raised since long ago, mainly in developed countries. Korea is following the European standard for'diesel vehicle exhaust gas regulation'.

The SCR catalyst system in the automotive field can achieve more than 90% DeNOx performance by using ammonia as a reducing agent, but it is difficult to store because ammonia is in the gaseous form, and it is almost impossible to use because it has a disadvantage that adversely affects the human body due to leakage. The Urea-SCR system is a method that can compensate for the shortcomings of the SCR system using ammonia catalyst.

The technology to purify nitrogen oxides using urea water is called Urea-SCR, in the US it is called as DEF (Diesel Exhaust Fluid) and in Europe as AdBlue. Urea water has a very large change in freezing point with temperature. When the concentration is 325%, the freezing point is -11℃, which is the lowest, so when setting the standard, the concentration of urea for automobiles is set at 325%, and the concentration of urea is set at 40% for ships and 40% for industrial use.

Urea-SCR system vehicles use urea water continuously when the engine is running, and the amount used at this time is consumed about 4-6% of the fuel. In a system to cope with the reinforced exhaust gas emission regulations, there is a research result that SCR has an average of 3~5% improvement in fuel efficiency than the EGR+DPF system. Therefore, the use of urea water incurs additional costs, but due to the fuel economy effect, the overall operating cost of Urea-SCR is economical.

The Urea-SCR system purifies nitrogen oxides in the exhaust gas by injecting urea water through the urea water injection device while the exhaust gas generated from the diesel engine passes through the SCR catalyst.

In manufacturing the urea water used in the Urea-SCR system as described above, the number of gas stations that sell urea water is increasing by installing a urea water supply device similar to a lubricator, but it is stored and stored in the urea water supply device until it is sold. There are many difficulties in quality control of the urea water continuously supplied to the urea water storage tank due to contamination by microorganisms that may occur in the urea water or the occurrence of scale in the urea water storage tank due to the occurrence of urea salt.

Here, the urea salt is an impurity contained in the urea water and is not easily removed if it is deposited on the wall or bottom of the urea water storage tank and adheres to it, and the quality of the urea water supplied is not high due to the urea salt. Various problems can arise due to the provision of water. Such urea salt is dissolved by continuous heating, but it is difficult to remove if urea water is generated on the wall or bottom of the storage tank, so urea salt is continuously increased in the process of being received and discharged inside the storage tank. In addition to the problem of increasing the content of urea water impurities, there is a problem that maintenance costs increase due to the need for periodic cleaning of the urea water storage tank.

Therefore, the cleaning process of the urea water storage tank in the urea water supply device in the form of a dispenser plays an important role in supplying high quality urea water. However, since the urea water storage tank of the dispenser-type urea water supply device is integrally configured, there is a problem in that the aforementioned cleaning process is not easy. That is, a special technique or method is required to store the urea water storage tank, and there is a problem in that it is difficult to supply urea water on time since the supply of urea water is limited during the cleaning process.

Accordingly, the urea source supplier usually increases the hassle and economic burden of having a large number of urea water supply devices, and the periodic cleaning of the urea water storage tank requires the input of manpower with skilled techniques and methods. There is also a problem of an increase in repair costs as a result of not properly performing the function of the urea water supply device due to the inflow of washing water to the control unit of the urea water dispensing device or electronic devices during cleaning.

1. Republic of Korea Patent Registration No.0-1901346, registration date September 17, 2018.

Accordingly, the present invention was created to solve the above-described problems, and by forming the urea water storage tank of the urea water supply device in the form of a dispenser for supplying urea water by a replacement method such as a cartridge method, integral urea water storage When the urea water in the tank is exhausted, it prevents the generation of urea salt in the urea water storage tank and contamination of urea water due to the precipitation of foreign substances or scale formation, which is a problem caused by the conventional method of continuously supplying only urea water. It is an object of the present invention to provide a urea water supply device having a urea water cartridge unit provided so that only the urea water can be supplied to an automobile.

In addition, the present invention replaces the difficulty of cleaning the urea water storage tank of the conventional urea water supply device having an integrated urea water storage tank with a cartridge method to collect the urea water storage tank in the form of a cartridge exhausted of urea water, and separately wash the urea water storage tank. By supplying it, cleaning at the site is unnecessary, solving the difficulty of maintenance due to cleaning, and making it possible to continuously supply urea water without limiting the time to stop supplying urea water due to the cleaning process. Another object is to provide a urea water supply device having a urea water cartridge unit that can minimize the resulting economic loss.

Furthermore, the present invention minimizes the occurrence of urea water pollution sources due to adhesion of urea salt, precipitation of foreign matter, and scale formation in the conventional integrated urea water storage tank by supplying in the form of a cartridge of a urea water storage tank for supplying urea water, Since the cleaning process of the urea water storage tank, which requires skilled technology in the field, is unnecessary, labor costs are reduced and maintenance is simple, and accordingly, the urea water supply device with the urea water cartridge unit is provided with a urea water cartridge unit that reduces maintenance costs and maximizes convenience in use. It has a purpose to provide.

The urea water supply device in which the urea water cartridge unit is formed according to the present invention displays the urea water supply status for supplying urea water to the vehicle through the user's urea water supply operation, and controls the supply of urea water inside. , A body housing 100 receiving urea water from the urea water storage tank 310 hermetically coupled to the connector means 130 formed on the rear side; A guide housing 200 having a transfer rail formed on an upper surface thereof and formed in a rectangular plate shape toward the bottom of the rear surface of the main housing; The urea water cartridge unit is rail-coupled to the transfer rail 220 of the guide housing 200, the urea water is received so as to supply the urea water to the main housing 100, is detachably attached to the main body housing, and is hermetically coupled interchangeably ( 300); characterized in that formed as.

Here, the main body housing 100 includes a urea water injection gun 110 for supplying urea water to an exhaust gas reduction device of a vehicle on one side thereof; A display unit 120 for displaying a supply operation of urea water by a user and a supply status of urea water supplied through the urea water injection gun 110 on the front side; A connector means 130 to which the urea water cartridge unit 300 is detachably attached to the rear surface and is hermetically coupled to be replaceable; A solenoid valve 140 which is connected to the connector means 130 and controls the inflow of the urea water contained in the urea water cartridge unit 300 into the main body housing; A suction pump 150 configured to suck urea water from the urea water cartridge unit 300 and discharge urea water to the urea water injection gun 110 through the solenoid valve 140; A metering means 160 connected between the urea water injection gun 110 and the suction pump 150 to measure a suction amount of urea water and transmit the measured value to the display unit 120; A sensor 170 coupled to one side of the connector means 130 to detect that the urea number cartridge unit 300 is hermetically coupled to the connector means 130; Controls the operation of the suction pump 150 and the opening of the solenoid valve 140 according to the detection signal detected by the sensor 170 of the hermetic coupling of the urea water cartridge unit 300 to the connector means 130, A control unit provided to control the operation of the suction pump 150 and the solenoid valve 140 according to the measured urea water metering value of the metering means 160 according to the urea water supply operation by the user, and display on the display unit 120 It characterized in that it is formed of (180);

On the other hand, the guide housing 200 includes a cartridge support base 210 formed in the shape of a square plate toward the bottom of the rear surface of the main housing 100; A transfer rail 220 formed on the upper surface of the cartridge support base 210 and provided to be airtightly coupled by being transferred to the connector means 130 formed on one side of the rear side of the body housing by rail-coupled with the urea number cartridge unit 300; The cartridge support base 210 is formed symmetrically to protrude upward from the upper surface of the cartridge support base to the left and right sides of the rear of the cartridge support base, and is operated at a right angle from the rear of the cartridge support base to a horizontal line coincident with the left and right sides, so that the number of urea cartridge units 300 It characterized in that it is formed of; guide wing 230 for guiding and fixing the transfer rail 220.

Further, the urea water cartridge unit 300 is formed in a rectangular enclosure, and a urea water storage tank 310 having an inlet 312 for injecting and cleaning urea water on an upper surface thereof; A front side of the urea water storage tank 310 is hermetically coupled detachably to the connector unit 130 of the main body housing 100 so that the urea water accommodated therein is discharged, and the connector means of the main body housing 100 ( A urea water discharge unit 320 to which a check valve 322 is coupled to be used as a drain from which the washing water is discharged during the washing operation after the collection is detached from 130); The urea water discharge unit 320 is formed on the lower surface of the urea water storage tank 310 to support the urea water storage tank 310, and the urea water discharge unit 320 is provided with a connector means ( It characterized in that it is formed of; a transfer base 330 that is automatically airtightly coupled to 130).

Here, the connector means 130 and the urea water discharging part 320 are packed 400 around the outer periphery of the connector means and the urea water discharging part when the urea water discharging part is fitted into the inner edge of the connector means for airtight coupling. The combined planar flanges 500 are formed to face each other and come into contact with each other, and are formed to have magnetic forces of opposite polarities so that the planar flanges 500 facing each other having opposite polarities are magnetically coupled to form the packing 400. It is characterized in that it is formed so as to maintain airtightness by pressing by the magnetic force of the plane flange in contact with the surface.

In the present invention, the urea water storage tank of the urea water supply device in the form of a dispenser for supplying urea water is formed by a replacement method such as a cartridge method, so that when the urea water is exhausted into the integrated urea water storage tank, only urea water is continuously supplied. Prevention of urea salt generation in the urea water storage tank, which is a problem caused by the method, and contamination of urea water due to precipitation of foreign matter or scale formation, and it is possible to supply only clean and purified urea water of high quality and high quality to automobiles at all times. The difficulty of cleaning the urea water storage tank of the urea water supply device with the urea water storage tank is replaced by a cartridge method, and the urea water storage tank in the form of a cartridge that has exhausted urea water is collected, washed separately, and resupplied to be cleaned at the site. By making this unnecessary, it is possible to solve the difficulty of maintenance due to washing, and to minimize the economic loss caused by the stop of supply of urea water by enabling continuous supply of urea water without limiting the time to stop supply of urea water due to the cleaning process. There is an advantage.

Furthermore, the present invention minimizes the occurrence of urea water pollution sources due to adhesion of urea salt, precipitation of foreign matter, and scale formation in the conventional integrated urea water storage tank by supplying in the form of a cartridge of a urea water storage tank for supplying urea water, Since the cleaning process of the urea water storage tank, which requires skilled technology in the field, is unnecessary, labor costs are reduced and maintenance is simple, and maintenance costs are reduced and convenience in use is maximized.

Figure 1 is an overall perspective view of a urea water supply device in which the urea water cartridge unit according to the present invention is formed.
Figure 2 is an exploded perspective view of the urea water supply device in which the urea water cartridge unit is formed according to the present invention.
3 is an enlarged perspective view of a main part of a connection portion between a main body housing and a urea water cartridge unit of a urea water supply device having a urea water cartridge unit according to the present invention.
4 is a schematic diagram of a supply line of a urea water supply device in which a urea water cartridge unit is formed according to the present invention.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to embodiments to be described later in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms different from each other.

In the present specification, the present embodiment is provided to complete the disclosure of the present invention, and to fully inform the scope of the invention to those of ordinary skill in the art to which the present invention pertains. And the invention is only defined by the scope of the claims. Accordingly, in some embodiments, well-known components, well-known operations, and well-known techniques have not been described in detail in order to avoid obscuring interpretation of the present invention.

The same reference numerals refer to the same elements throughout the specification. In addition, terms used in the present specification (referred to) are for explaining embodiments and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. In addition, components and operations referred to as'comprising (or having)' do not exclude the presence or addition of one or more other components and operations.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used with meanings that can be commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless defined.

Hereinafter, the technical features of the urea water supply device in which the urea water cartridge unit of the present invention is formed will be described in detail with reference to the accompanying drawings.

1 is an overall perspective view of a urea water supply device having a urea water cartridge unit according to the present invention, FIG. 2 is an exploded perspective view of a urea water supply device with a urea water cartridge unit according to the present invention, and FIG. It is an enlarged perspective view of the main part of the connection part between the main body housing and the urea water cartridge unit of the urea water supply device in which the urea water cartridge unit is formed according to the present invention, and FIG. 4 is a schematic view of the supply line of the urea water supply device with the urea water cartridge unit according to the present invention. to be.

The urea water supply device provided with the urea water cartridge unit according to the present invention prevents urea water contamination due to the generation of urea salt, precipitation of foreign substances, and formation of scale inside the storage tank, which are problems of the conventional urea water storage tank-integrated urea water supply device. It is possible to supply high-purity urea water by preventing contamination, and it is easy to clean due to contamination prevention, and minimizes economic loss due to shutdown of the urea water supply device during the cleaning process, and maintenance is easy, and equipment cost is low. , As shown in Figs. 1 and 2, the urea water supply device in which the urea water cartridge unit is formed is a main body housing 100 and a guide housing 200 as shown in Figs. , When the urea water is exhausted in the urea water storage tank, which is composed of the urea water cartridge unit 300, and the urea water storage tank, which was integrated with the conventional main body housing, the urea water is continuously filled and used, the difficulty of cleaning the urea water tank and the above-described pollution source. It takes into account the difficulty of supplying high-quality urea water due to the increase and the economic loss due to the increase in downtime of the urea water supply device due to the cleaning process.

The main body housing 100 of the urea water cartridge unit according to the present invention displays the urea water supply status for supplying urea water to the vehicle through the user's urea water supply operation on the front, and supplies the urea water to the inside. It controls, and is formed to receive the urea water from the urea water storage tank 310 hermetically coupled to the connector means 130 formed on the rear side. That is, in order to supply the number of urea to the vehicle, the main body housing 100 selects the amount of urea that the user wants to be supplied to the vehicle on the display unit to be described later, and the cost according to the amount of urea is paid by card or cash. An intuitive gas station to receive the urea water from the urea water storage tank by operating the configuration for supplying the urea water configured inside the main housing according to the payment or payment according to the amount of the recently used smart pay, gift certificate, etc. It is configured in the same manner as the lubricating machine of, but has a binding configuration for supplying urea water through attachment and detachment with the urea hydrogen cartridge unit 300 to be described later.

As shown in Figs. 1 to 3, the main body housing 100 is a urea water injection gun 110, a display unit 120, a connector means 130, a solenoid valve 140, a suction pump 150, and It consists of a metering means 160, a sensor 170, and a control unit 180.

The urea water injection gun 110 is configured to supply urea water to one side of the main body housing 100 to an exhaust gas reduction device of the vehicle, and the urea water supplied according to the operation of the suction pump to be described later is exhausted from the vehicle. It is preferable that it is connected with a flexible hose so as to be supplied to the gas reduction device, and is configured with a length that reaches to the exhaust gas reduction device of the vehicle.

The display unit 120 displays an operation of supplying urea water by a user and a supply status of urea water supplied through the urea water injection gun 110 on the front side. Here, as the user's operation of supplying the number of urea, it is configured to intuitively display and use the amount of urea according to the amount of urea to be supplied to the vehicle's exhaust gas reduction device and the amount of urea according to the amount of payment, etc. The measured value of the number of urea measured by the measuring means is displayed on the display by the control unit so that the user can easily check it.

The connector means 130 is formed on one side of the rear surface of the main body housing 100. Here, the connector means is configured to be hermetically coupled so that the urea water cartridge unit 300 to be described later is detachable and replaceable, and is configured to be pipe-connected with the urea water discharge portion formed in the urea water storage tank of the urea water cartridge unit. It is formed so that the urea water stored and received in the water storage tank is supplied.

Here, when the connector means 130 is connected to the urea water discharge unit, the airtightness is maintained to prevent leakage of the urea water. Accordingly, the connector means 130 and the urea water discharge part 320 to be described later are fitted with the urea water discharge part through the inner edge of the connector means for airtight coupling so that there is no interference with the discharge direction of the fluid. In addition, as shown in Figure 3, the connector means and the urea water discharge unit is formed so that the packing 400 is coupled to the outer periphery of the planar flanges 500 to face each other and in contact with each other, and have magnetic forces of opposite polarities to each other. The airtightness is maintained by magnetic force between the surface flange of the connector means that the packing 400 is in surface contact with the surface flanges 500 facing each other with the opposite polarity by magnetic force. To be formed.

The solenoid valve 140 is installed inside the main body housing and is connected to the above-described connector means 130 to control the suction of the urea water, and the solenoid valve 140 is connected to the connector means 130 to control the number of urea. The urea water contained in the cartridge unit 300 is controlled to flow into the main body housing. Here, the solenoid valve 140 receives the detected signal when the sensor to be described later detects that the urea water cartridge unit is connected to the connector means, the controller opens the solenoid valve, and at the same time operates the suction pump to be described later. The urea water contained in the urea water storage tank of the urea water cartridge unit is sucked. That is, when the initial urea water cartridge unit is connected to the main body housing through the connector means, the solenoid valve is locked again while the urea water is set in a state in which the urea water is sucked by the suction pump until the metering means described later, and then the user starts supplying the urea water from the display. When the urea water supply signal is transmitted through the operation of the suction pump, the solenoid valve is opened according to the operation of the suction pump and operates according to the requested amount of urea water.

The suction pump 150 is provided to suck urea water from the urea water cartridge unit 300 to be described later and discharge the urea water to the urea water injection gun 110 through the solenoid valve 140. Here, as mentioned above, the suction pump 150 is formed to be operated when the signal is transmitted for supplying urea water or when the urea water cartridge unit 300 is replaced and is initially set by generation of a detection signal by a sensor.

The metering means 160 is pipe-connected between the urea water injection gun 110 and the suction pump 150 to measure the suction amount of urea water, and transmits the measured value to the display unit 120. In addition, the number of urea is measured and the measured value is controlled by the control unit according to the amount of urea set by the user or the amount of urea to be supplied to the control unit.

The sensor 170 is coupled to one side of the connector means 130 to detect that the urea water cartridge unit 300 is hermetically coupled to the connector means 130. When the urea water cartridge unit, which is replaced according to the cleaning of the urea water storage tank or exhaustion of the urea water, is initially connected to the connector means, the sensor 170 confirms the connection, and as mentioned above, the urea water is sucked to the metering means. Next, the initial setting signal is transmitted to the control unit so that the user can receive the urea water in a fixed amount.

The control unit 180 is provided to receive and control an operation relationship or signal of a sensor, a connector unit, a suction pump, a metering unit, a solenoid valve, and a display unit. The operation of the suction pump 150 and the opening of the solenoid valve 140 are controlled according to the detection signal detected by the sensor 170 to detect the airtight coupling of the male cartridge unit 300, and the urea water supply operation by the user is controlled. Accordingly, the operation of the suction pump 150 and the solenoid valve 140 is controlled by the measured urea water metering value of the metering means 160 and is provided to be displayed on the display unit 120. Here, it is preferable that the control unit 180 is provided inside the main body housing in which the display unit is formed.

Meanwhile, the guide housing 200 has a transfer rail formed on an upper surface thereof, and is formed in a rectangular plate shape toward the bottom of the rear surface of the main body housing to be integrally formed with the main body housing. That is, the guide housing 200 is provided to guide the urea water cartridge unit to be accurately connected to the connector means, and at the same time maintain and fix a horizontal state for safe support support of the urea water storage tank.

As shown in FIGS. 1 and 2, the guide housing 200 includes a cartridge support base 210, a transfer rail 220, and a guide wing 230.

The cartridge support base 210 is formed integrally with the body housing 100 and is formed in a rectangular plate shape toward the bottom of the rear surface of the body housing 100. Here, the cartridge support base 210 is to maintain a horizontal support and support of the urea water cartridge unit 300, which will be described later.

The transfer rail 220 is formed on the upper surface of the cartridge support base 210 described above, and the urea cartridge unit 300 is rail-coupled to be transferred to the connector means 130 formed on the rear side of the main body housing so that it is airtightly coupled. It is prepared. In addition, the transfer rail 220 controls the left and right flow of the urea water cartridge unit 300 and at the same time guides the urea water discharge portion of the urea water cartridge unit to the connector means 130 to be located on the same line to facilitate coupling. To play a role. That is, after placing the urea water cartridge unit on the cartridge support base 210 without a transfer rail, in order for the operator to match the urea water discharge part to the connector means 130, the urea water cartridge unit in which the urea water is fully accommodated is actually used by manpower. Because it is difficult to move. Therefore, just by coupling the urea number cartridge unit to the transfer rail 220, the connector means and the urea number discharging unit are aligned on the same line, and the number of urea by only the motion of lightly pushing the urea number cartridge connector along the transfer rail by manpower. It can be easily combined with the connector means of the cartridge unit.

The guide wing 230 is formed to correctly guide the urea water cartridge unit to the rear end of the transfer rail. In order to move the urea water cartridge unit, the urea water cartridge unit is placed on a moving carriage, and then the cartridge support on which the transfer rail is formed. It moves to the base. At this time, the urea water cartridge unit, which is moved through the moving cart by the guide wing 230, is guided to the transfer rail side and is accurately rail-coupled with the transfer rail, and after being coupled to the transfer rail, the urea water cartridge unit is pushed to the rear end. It is fixed to be controlled. That is, the guide wing 230 is formed symmetrically to protrude upward from the upper surface of the cartridge support base to the left and right sides of the rear of the cartridge support base 210, and is operated by turning at a right angle from the rear of the cartridge support base to a horizontal line coincident with the left and right sides. The urea water cartridge unit 300 is guided and fixed to the transfer rail 220.

Here, the guide wing 230 is formed to protrude upwardly than the upper surface of the cartridge support base to serve as a locking step to prevent the urea water cartridge unit from being pushed to the rear end. To this end, as described above, the guide wing is rotated and fixed toward the rear center at a right angle to prevent the rear end of the urea cartridge unit from being pushed, and at the same time, the guide wing 230 stores the urea number of the urea number cartridge unit. If the right-angled turning operation is restricted without being in close contact with the rear of the tank, it may be an index that can be visually confirmed that the urea number cartridge unit is not correctly connected to the connector means 130.

On the other hand, as shown in Figs. 1 to 4, the urea water cartridge unit 300 has difficulty in cleaning caused by integrally forming a urea water storage tank in a conventional urea water supply device and a factor due to exhaustion of urea water. The problem of economic loss due to the disruption in supply of urea water due to the suspension of operation due to the additional water supply process and the suspension of operation during the washing process, the occurrence of urea salt, precipitation of foreign matter, and the occurrence of scale due to the continuous supply of urea water without washing. In order to solve the problem of secondary economic loss due to damage or failure of the vehicle exhaust gas reduction device due to the supply of defective urea water due to water pollution, it can be quickly replaced in the form of a cartridge, and it is replaced and collected to make cleaning faster and more convenient. As a result, there is no economic loss due to supply of high-quality urea water and operation shutdown through minimization of urea water contamination, and maintenance is simple and maintenance cost is reduced as there is no input of experts for cleaning the urea water storage tank at the site. It is possible to reduce the economic burden through an inexpensive synthetic resin urea water storage tank without the use of an expensive storage tank made of stainless material of the conventional urea water storage tank. To solve the problem of the urea water storage tank, it is composed of a urea water storage tank 310, a urea water discharge part 320, and a transfer base 330.

The urea water storage tank 310 is configured so that the urea water is filled so that the whole can be detachably attached to the main housing in the form of a cartridge, and is formed in a rectangular enclosure, and an inlet for injecting and cleaning urea water on the upper surface 312 is formed. Here, the urea water storage tank 310 is formed of a synthetic resin material so that a more inexpensive urea water supply device can be supplied, and a urea water supply purchaser can supply only urea water to consumers without the need to separately wash the urea water storage tank. By forming, it is possible to save the time and cost of high-quality service and maintenance to the consumer.

The urea water discharge unit 320 is hermetically coupled detachably to the connector unit 130 of the above-described main housing 100 to supply urea water and discharge the washing water to the outside during the cleaning process of the collected urea water storage tank. The urea water storage tank 310 is airtightly coupled detachably to the connector means 130 of the main body housing 100 on one side of the front side of the urea water storage tank 310 so that the urea water contained therein is discharged. The check valve 322 is coupled to be detached from the connector means 130 of the main housing 100 so as to be used as a drain for discharging the washing water during a washing operation after collection.

Here, the check valve 322 of the urea water discharge unit 320 is locked when the urea water is accommodated, and is unlocked when connected to the connector means 130 so that the urea water is supplied to the body housing side. In addition, when washing through the injection of washing water in the internal washing process of the collected urea water storage tank, the check valve is locked to prevent the washing water from flowing out, and when washing is complete, the contaminated washing water is discharged to a separate treatment device. After removing the pollutant source inside the urea water storage tank, refill the urea water to disconnect the urea water storage tank from which the urea water is exhausted at the site, and reuse it.

The transfer base 330 is formed on the lower surface of the urea water storage tank 310 to support the urea water, and the urea water is discharged through a rail block 332 that is rail-coupled to the transfer rail 220 on the lower surface to move the rail. The part 320 is formed to be automatically airtightly coupled to the connector means 130 so as to be detachable. Here, since the urea water storage tank coupled to the transfer base 330 has a significant weight in the process of moving toward the transfer rail side of the main body housing, it is preferable to move it by placing it on a moving cart or the like.

As shown in Figs. 1 and 2, the urea water supply device having the urea water cartridge unit according to the present invention is a transfer rail formed on the upper surface of the guide housing 200 integrally formed on the rear surface of the main body housing 100. The rail block 332 of the urea water cartridge unit 300 is coupled to the rail 220. Here, the urea water storage tank 310 of the urea water cartridge unit 300 is in a state filled with high quality urea water, and corresponds to a moving cart at the bottom of the transfer base 330 formed on the lower surface of the urea water cartridge unit 300 After that, it moves from the ground floor and moves to the guide wing 230 side of the guide housing 200.

At this time, the guide wing 230 is unfolded to the left and right sides of the guide housing 200, and the unfolded left and right widths of the guide wing 230 correspond to the left and right widths of the urea number storage tank 310 of the urea number cartridge unit 300. .

Thereafter, the urea water cartridge unit 300 mounted on the mobile cart enters between the guide wings 230 and the rail block 332 corresponds to the rear end of the transfer rail 220 formed on the upper surface of the guide housing 200. That is, when the number of urea cartridge unit 300 enters between the guide wings 230, the rail coupling is immediately guided without separately adjusting the coupling position of the transport rail 220 and the rail block 332, and the rail block 332 When) is rail-coupled onto the transfer rail 220, the urea water cartridge unit 300 is transferred along the transfer rail 220 to the connector means 130 of the main housing 100.

When the urea water cartridge unit 300 approaches the connector means 130 side, as shown in Figs. 3 and 4, the urea water discharge unit 320 is pipe-connected while entering the inner edge of the connector unit 130, and When the urea water discharge part enters the connector means, the connector means 130 and the planar flange 500 formed on the outer periphery of the urea water discharge part 320 face each other and make surface contact. At this time, the packing 400 is coupled between the planar flanges, and the planar flanges 500 facing each other having different polarities are in close contact with each other by magnetic force and press the packing 400 so that the number of elements is connected to the connector means 130 It is prevented from flowing between the urea water discharge unit (320).

Next, when the connector means 130 and the urea water discharge part 320 are hermetically coupled, the check valve 322 of the urea water discharge part 320 is opened, and the connector means 130 is formed inside the body housing. After the sensor 170 detects and the detected signal confirms that the connector unit 130 and the urea water discharge unit 320 are connected to the controller 180, the controller 180 operates the suction pump 150. In addition, the controller 180 opens the solenoid valve 140 which is connected to the connector means 130 and is formed inside the body housing to store the number of urea filled in the urea water storage tank 310 of the urea water cartridge unit 300. After suction is controlled until the metering means 160 by suction, the operation of the suction pump 150 is stopped, and the opening of the solenoid valve 140 is locked.

Next, when the consumer manipulates to supply the urea water to the vehicle exhaust gas reduction device through the display unit 120 and pays for the amount of urea water, the control unit operates the suction pump 150 again accordingly. , By reopening the solenoid valve 140, the urea water is sucked from the urea water storage tank 310, and the urea water is quantitatively measured by the metering means 160 to reduce the exhaust gas of the vehicle through the urea water injection gun 110. Supply urea water to the device.

Here, the measured value of the number of urea measured by the measuring means 160 is continuously displayed on the display unit 120 and displayed to the consumer to be identifiable with the naked eye, so that the injection amount of the urea water can be checked in real time. Thereafter, when the vehicle injection of the urea water is completed, the controller 180 stops driving the suction pump 150 and locks the solenoid valve 140 to complete.

When all the urea water stored in the urea water storage tank 310 of the urea water cartridge unit 300 is exhausted through the above operation, the operator locks the suction pump and the solenoid valve through the control unit 180, and the urea water discharge unit ( The check valve 322 of the 320) is closed to prevent leakage of residual urea water.

Next, while the urea water discharge unit 320 of the urea water cartridge unit 300 releases the airtight coupling from the connector means 130, all the urea water is exhausted in the reverse order of the rail coupling process of the transfer rail 220 described above. The urea water cartridge unit 300 is removed from the body housing and the guide housing, and a new urea water cartridge unit 300 filled with the urea water in the urea water storage tank is combined with the main body housing to supply urea water in a short time. Take action to do it.

Thereafter, the urea water cartridge unit 300 collected due to exhaustion of urea water is subjected to a cleaning process by grasping the degree of contamination inside the urea water storage tank 310 before refilling the urea water into the urea water storage tank. In this case, in the washing process, the cleaning solution is injected through the inlet 312 formed on the upper part of the urea water storage tank 310 to remove the contaminant inside the urea water storage tank 310, and then, the urea water storage tank 310 is injected into the urea water storage tank. The washing liquid is discharged to a washing liquid treatment facility or place by unlocking the check valve 322 of the urea water discharge unit 320 or separately collected and treated.

Thereafter, the urea water cartridge unit 300 equipped with the empty urea water storage tank 310, which has been cleaned, finishes the drying process of the urea water storage tank 310, and then fills the urea water with high quality again and supplies it to the main body housing. By doing so, it is possible to minimize the downtime of the urea water supply device by simply replacing and using the urea water storage tank without the need for the operator to clean the urea water storage tank at the site, and it is possible to quickly supply high-quality urea water from which the pollutant source has been removed to consumers. .

Therefore, the urea water supply device provided with the urea water cartridge unit according to the invention can supply high-quality urea water without contamination of the urea water storage tank, and quickly supply urea water with only replacement without cleaning the urea water storage tank at the site. Economical loss is minimized, and the urea water storage tank is separately collected and cleaned, so it is possible to easily manage the urea water without a separate skill in urea water management, thereby improving ease of maintenance, maintenance cost reduction, and convenience in use. It is self-evident.

As described above, the technical idea of the present invention has been specifically described in the preferred embodiment, but it should be noted that the above-described embodiment is for the purpose of explanation and not for the limitation thereof. As such, the present invention may be implemented by combining them. Accordingly, the invention is only defined by the scope of the claims set forth in the claims.

100: main housing 110: urea water injection gun
120: display unit 130: connector means
140: solenoid valve 150: suction pump
160: measuring means 170: sensor
180: control unit 200: guide housing
210: cartridge support base 220: transfer rail
230: guide wing 300: urea number cartridge unit
310: urea water storage tank 312: inlet
320: urea water discharge unit 322: check valve
330: transfer base 332: rail block
400: packing 500: cotton flange

Claims (5)

Displays the urea water supply status for supplying urea water to the vehicle through the user's urea water supply operation, controls the supply of urea water inside, and is hermetically coupled to the connector means 130 formed at the rear side. A main body housing 100 receiving urea water from the urea water storage tank 310;
A guide housing 200 having a transfer rail formed on an upper surface thereof and formed in a rectangular plate shape toward the bottom of the rear surface of the main housing;
The urea water cartridge unit is rail-coupled to the transfer rail 220 of the guide housing 200, the urea water is received so as to supply the urea water to the main body housing 100, is detachably attached to the main body housing, and is hermetically coupled to be replaceable ( 300); urea water supply device, characterized in that the urea water cartridge unit is formed.
The method of claim 1,
The body housing 100 includes a urea water injection gun 110 for supplying urea water to an exhaust gas reduction device of a vehicle on one side thereof;
A display unit 120 for displaying a supply operation of urea water by a user and a supply status of urea water supplied through the urea water injection gun 110 on the front side;
A connector means 130 to which the urea water cartridge unit 300 is detachably attached to the rear surface and is hermetically coupled interchangeably;
A solenoid valve 140 which is connected to the connector means 130 and controls the inflow of the urea water contained in the urea water cartridge unit 300 into the main body housing;
A suction pump 150 configured to suck urea water from the urea water cartridge unit 300 and discharge urea water to the urea water injection gun 110 through the solenoid valve 140;
A metering means 160 connected between the urea water injection gun 110 and the suction pump 150 to measure a suction amount of urea water and transmit the measured value to the display unit 120;
A sensor 170 coupled to one side of the connector means 130 to detect that the urea number cartridge unit 300 is hermetically coupled to the connector means 130;
Controls the operation of the suction pump 150 and the opening of the solenoid valve 140 according to the detection signal detected by the sensor 170 of the hermetic coupling of the urea water cartridge unit 300 to the connector means 130, A control unit provided to control the operation of the suction pump 150 and the solenoid valve 140 according to the measured urea water metering value of the metering means 160 according to the urea water supply operation by the user, and display on the display unit 120 (180); The urea water supply device having a urea water cartridge unit, characterized in that formed as.
The method of claim 1,
The guide housing 200 includes a cartridge support base 210 formed in a rectangular plate shape toward the bottom of the rear surface of the main housing 100;
A transfer rail 220 formed on the upper surface of the cartridge support base 210 and provided to be airtightly coupled by being transferred to the connector means 130 formed on one side of the rear side of the body housing by rail-coupled with the urea water cartridge unit 300;
The cartridge support base 210 is formed symmetrically to protrude upward from the upper surface of the cartridge support base to the left and right sides of the rear, and rotated at a right angle to a horizontal line coincident with the left and right sides from the rear of the cartridge support base to obtain the number of urea cartridge units 300. A urea water supply device having a urea water cartridge unit, characterized in that formed as a guide wing (230) for guiding and fixing the transfer rail (220).
The method of claim 1,
The urea water cartridge unit 300 includes a urea water storage tank 310 formed in a rectangular housing and having an inlet 312 for injecting and cleaning urea water on an upper surface thereof;
A front side of the urea water storage tank 310 is hermetically coupled detachably to the connector unit 130 of the main body housing 100 so that the urea water accommodated therein is discharged, and the connector means of the main body housing 100 ( A urea water discharge unit 320 to which a check valve 322 is coupled to be used as a drain from which the washing water is discharged during the washing operation after the collection is detached from 130);
The urea water discharge unit 320 is formed on the lower surface of the urea water storage tank 310 to support the urea water storage tank 310, and the urea water discharge unit 320 is a connector unit through a rail block 332 that is rail-coupled to the transfer rail 220 to move the rail on the lower surface. The urea water supply device having a urea water cartridge unit, characterized in that formed with a transfer base 330 that is automatically airtightly coupled to the 130.
The method of claim 4,
When the connector means 130 and the urea water discharge part 320 are fitted with the urea water discharge part into the inner edge of the connector means for airtight coupling, the connector means and the urea water discharge part are coupled with the packing 400 around the outer periphery of the connector means. The planar flanges 500 are formed to face each other and are in contact with each other, and the planar flanges 500 facing each other having opposite polarities are formed to have magnetic forces of opposite polarities to be magnetically coupled, so that the packing 400 is in contact with each other. A urea water supply device with a urea water cartridge unit, characterized in that formed to maintain airtightness by pressurization by magnetic force of the surface flange.

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